Supervise Initial Introductions Carefully

Solution

Introduce new ducks or chickens to an existing mixed flock gradually, starting with visual contact through a barrier.

Explanation

Allow birds to see and get used to each other through a fence or separate pen within the run for several days to a week before allowing full contact. Supervise initial interactions closely for aggression.

Notes

Integrating adult birds is often more challenging than raising them together from a young age (though brooding them together has its own difficulties due to different needs).